Kibana Fleet Agents upgrade issues

Good morning,

I am currently testing out "Fleet" and I really like it so far, but now that version 7.11 has come out I am seeing all these issues.

My main concern on this one is the upgrade. I am seeing the following in the logs.

021-02-18T09:55:17.308-0500	DEBUG	application/handler_action_upgrade.go:24	handlerUpgrade: action 'action_id: 501682a0-71f9-11eb-b26e-cba7da908a4d, type: UPGRADE' received
2021-02-18T09:55:17.308-0500	INFO	log/reporter.go:40	2021-02-18T09:55:17-05:00: type: 'STATE': sub_type: 'UPDATING' message: Application: [f5ea018d-60a9-478b-bae0-aa8a7ab80b1c]: State changed to UPDATING: Update to version '7.11.1' started
2021-02-18T09:55:30.412-0500	DEBUG	kibana/client.go:170	Request method: POST, path: /api/fleet/agents/f5ea018d-60a9-478b-bae0-aa8a7ab80b1c/acks
2021-02-18T09:55:33.177-0500	ERROR	log/reporter.go:36	2021-02-18T09:55:33-05:00: type: 'ERROR': sub_type: 'FAILED' message: Application: [f5ea018d-60a9-478b-bae0-aa8a7ab80b1c]: State changed to FAILED: failed verification of agent binary, hash does not match: /go/src/github.com/elastic/beats/x-pack/elastic-agent/pkg/agent/application/upgrade/step_download.go[56]: unknown error
2021-02-18T09:55:33.177-0500	DEBUG	application/action_dispatcher.go:93	Failed to dispatch action 'action_id: 501682a0-71f9-11eb-b26e-cba7da908a4d, type: UPGRADE', error: failed verification of agent binary, hash does not match: /go/src/github.com/elastic/beats/x-pack/elastic-agent/pkg/agent/application/upgrade/step_download.go[56]: unknown error
2021-02-18T09:55:33.177-0500	ERROR	application/fleet_gateway.go:159	failed to dispatch actions, error: failed verification of agent binary, hash does not match: /go/src/github.com/elastic/beats/x-pack/elastic-agent/pkg/agent/application/upgrade/step_download.go[56]: unknown error

The other issues looks to have open topics already. I will monitor those for my other issues.

Thanks,

this happens when downloaded binary and its hash does not match.

can you provide more details about from which version to which version you're updating.
updgrade in 7.10 and 7.10.1 is broken and won't work. the issue was fixes in 7.10.2 so if you have mentioned versions it might be possible you're running into this bug and you need to upgrade manually by uninstalling and installing new agent.